Oil-burner.



L. A. STOKES.

OIL BURNER. APPLIOATION PI LED JUNE 25, 1912.

K Patented M11128, 191's.

Attorneys 1 stoo LEVI it. STOKES, OLE-POINT RICHMOND, CALIFORNIA.

Specification of Letters Yatcnt.

Patented Jan. 2%, 1913.

Application filed .Tune 25, 1912. Serial No. 705,894.

To all whom it may concern:

Be it known that I, Lnvr A. STGKES, a citizen of the United States, residing at Point Richmond, in the county of Contra Costa and State of California, have invented a new and useful Oil-Burner, of which the following is. a specification.

This invention relates to liquid fuel or hydro-carbon burners, and aims primarily 10.

commingle with the steam to provide a highly combustible vapor.

Among its other objects, the present invention aims to provide a burner of the character indicated, which shall be adjustable to suit the various conditions to which it maybe subjected; which simple, durable, substantial and inexpensive in construction; which will provlcle a compact injector burner for producing a fan-like flame; which embodies a vapor chamber for receiving the vapor and from which the vapor is discharged to provide the flame; and which shall be convenient, serviceable and eficient in its use.

With the foregoing general objects outlined, and other objects in view, which will be a parent as the invention is better underd, this invention resides in the novel construction and combination of parts hereinafter-set forth and claimed, it being understood that this device is susceptible of alter ations or deviations in its details within the scope of the appended claims without departing from the spirit of the invention.

The invention has been illustrated in its referred embodiment in the accompanying awings, wherein,-

Figure 1 1s aplan view of the burner.

Eig. 2 is a longitudinal vertical section thereof, parts being broken away.

Figs.

31end dare sectional details taken on the lines 33 and if-4: of Fig. 2, respectively.

Referring specifically to the drawings, the

' S resent burner embodies a body or fuel cylzmder 5, which is provided with a lateral port 6 intermediate its ends for attachment to a suitable fuel-cu ply pipe leading to a-sourneof fuel, mic

aserude oil or the like. The outer end of the cylinder is provided with an internal rabbet '4, and a vapor chamber 8 of rectangular cross section is attached to the outer end of the fuel cylinder 5, the vapor chamber 8 having an extension 9 at its inner end screw-threaded into the rabbet T and having a shoulder 10 abutting or seating againstthe other end of the cylinder. The outer end of the vapor chamber 8 is convex or semi-circular and is provided with one or more slots 12, in this case one, extending along the direction of curvature.

The diameter of the bore passing through the extension 9 of the vapor chamber 8 is less than the internal diameter of the cylinder 5, and a mixing tube 14K is screwthreaded through the extension 9 and has a head 13 fitting slidably in the cylinder 5 and abutting against the said extension 9. The mixing tube 14 has a reduced tip 15 projecting into the inner end of the vapor chamber 8, and the head 13 is provided witl" a conical bore 16 leading to the bore 17 oi? the mixing tube which extends through the tip 15.

At its inner or rear end, the cylinder 5 is provided with an internal flange 28, and a bushing 18 is screW-tln-eaded through the flange 28, the said bushing having an external flange 19' at its outer end seating against the outer face of the tlange 28. A. steam nozzle :20 is screw-threaded through the bushing 18 1 has a tapered portion 21 and a reduced tip entering the head 13 and mixing tube 14, respectiveiy. The taper of the portion 21 is less than the taper of the bore 18 of the head 13 and the external diameter of the tip 22 is slightly less than the diameter of the bore 17, so that a small annular space is provided between the external Walls of the tip 22 and the internal Walls )f the mixing tube 14. The bore 23 of the steam nozzle 20 is decreased in diameter within the tapered portion 21 and the tip 22, as designated by the numeral 24;, and the outer end of the reduced portion 2-.1 oi the bore is countersunk or beveled, indicated by the numeral 25. The binding nut 26 is screwthreaded on to the nozzle 20 and is designed to bind against the bushing 18 in order to lock the nozzle at any position tO,tVlllCh it is set or adjusted.

The foregoing parts may be constructed from any suitable "material, such as metal, and may be made of various sizes and pro portions, as will be found necessary cr tic steam, is attached to the inner end ofthe steam nozzle 20, it being understood that other suitable fluid under pressure could be substituted for steam. Then as the steam is forced forwardly or outwardly ofthe tip '22 of the steam'nozzle, the oil is drawn forwardly around the tip 22 and is atomized and sprayed by the jet of steam, the atomized oil and steam mixing withm the tube 14 and mp1s and then assin .into the fvapor chamber 8 in the arm 0 a'lii hly.

combustible vapor. The vapor accumu ates in the Vapor chamber 8 and is consequently under pressure due to the continuous ingress of vapor from the mixing tube, and the- "vapor is then discharged throu h, the ,slot12 to provide a fan-like flame.= iis flame be ing fan-like coversa comparatively large area and distributes the heat accordingly, so as not to concentrate the flame in the man- Qner of a needle flame which, when. contacting with an object is most likely in u:e same. i v

e steam nozzle 20 being screw-threaded to the bushing may be ad usted longitudinally so as to cause-the proper atomization of the fuel, according tothe density or pres-.- T The fuel may be supplied to the cylinder 5 either under pressure, such as b gravity or by means of a force pump,

to fuse or t 8 Steam y e made to suck the fuel, as will beunderstood.

zle and oil chamber, prevents any back pres-i It will noted thatfwith the form of burner set forth, the steam and oil are mixed thoroughly within the vapor chamber 8 prior to discharge therefrom, which rovides for a clear bright flame, devoi of black or heavy smoke, indicating a thorough consumption vof fuel or a high degree of combustion. This burner requires no baffles or perforated plates for the oil to pass through, the oil flowing directly to the steam nozzle, and the arrangement of steam nozsure on. the oil and causes the proper at-v omization of'the oil. It is understood that the slot 12 may be of anysuita-ble size to regulate the discharge of vapor, or that one or more of the said slots may be provided in order to produce a single flame or a plurulity'of flames lying in parallel planes.

its

Owing to the ressure of the gas collecting in the va ,or c mber 8,-thereis no possibilit of t e Waste of oii. s

T e burner may be readily assembled and. taken apart for purposes of repair, cleaning or replacement, and it will be noted that the mixing tube may be readily disengaged from the vapor chamberflfinz'order to provide' ready access into the vspor chamber for the purpose of cleansing same. This burner may be employed as an injector burner for steam boilers and the like, or may be employed in heating furnaces, stoves, and in fact for a multitude of purposes, as will be apparent to those skilled in the art. As a Whole, the present burner provides a desirable one for the purposes for which it is designed. I

Having thus described the invention, what is claimed as new is 1. A-fuel'burner embodying a fuel cylinder, a vapor chamber engaged to the-outer end thereof, a mixing tube engaged through the inner end of the .vapor chamber and having a head fitting in the cylinder, and a steam nozzle adjustable through the cylin der and having a tip entering the mixing tube.

2. .A fuelburner embodying a fuel, cylinder havinga lateral port, a vapor chamber ying a fuel cylin attached to the outer endof the-cylinder- "tube between the cylinder and va or chamwith its-tp the inner end of the cylinder with its tip 7 enteringthemixmg tube. i

- 4. A fuel Iburner embodying'a fuel cylinder having a la -tegal port, a vapor chamber hav'in an inner reduced extension screwthrea ed into the outer end of the cylinder,

said Ied'uced extension and having a head the cylinder, the vapor chamber having itsprovided with" a slot,

I outer end convex and a mixing tube screw'threadedthrough the said extension and having a, head fitting in the cylinder and abutting against the said extension; the mixing tube having its tip projecting into the vapor chamber and the head having a'conical boreleading to the a mixing tube screw-threaded throughthe I fitting in the cylinder, and a tip projecting bore of the mixing tube, a bushing screwthreaded' into the flange of the cylinder, and

eksteam. nozzle screw-threaded through the bushing and having a tapered portion and reduced. tip entering the said head and mixing tube, respectively.

6. A fuel burner embodying a fuel cylinder, a vapor chamber engaged to the outer end of the cylinder, a mixing tube engaged through the inner end of the vapor chamber and having a head fitting in the cylinder, the mixing tube having its tip projecting into the vapor chamber and the heed having a conical bore leading to the bore of the mixing tube, and a steam nozzle adjustable through the inneit end of the cylinder and having a tapered portion and at reduced tip entering the said head and mixing tube, respectively.

Intestimony that I claim the foregoing as my own, 1 have hereto efixed my signer ture in the presence of two witnesses.

v LEVI A. STOKES.

Witnesses:

(Ems. EDWARD Nmnncmm, JOHN EDWARD Emcee.

Copies of this patent may be obtained fer five cents each, by addressing the fiommissicner o1? I'etentze Washington, D. G. 

